99772015 ÷ 621 
Let's see how many times 621 fits into 99772015.

Advancing to step 1:
When dividing 9 by 621, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 621

On to step 2:
621 can be fit into 99 0 times, resulting in a remainder of 99.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 99, we get 99.
Grab the next digit (7) from the dividend, add it to 99, then carry on: 997 / 621

On to step 3:
When dividing 997 by 621, we get 1 with a remainder of 376.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 621 from 997 and we're left with 376.
Grab the next digit (7) from the dividend, add it to 376, then carry on: 3767 / 621

Going ahead to step 4:
The number 621 fits into 3767 6 times, leaving a remainder of 41.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtracting 3726 from 3767 leaves us with 41.
Include the next digit (2) from the dividend after 41, then repeat: 412 / 621

Advancing to step 5:
621 goes into 412 0 times with a remainder of 412.
Record the quotient 0 as the next digit in the result. 
Result so far: 160.0
The remainder is 412 after subtracting 0 from 412.
Include the next digit (0) from the dividend after 412, then repeat: 4120 / 621

Advancing to step 6:
621 goes into 4120 6 times with a remainder of 394.
The next digit of our result is 6. 
Result so far: 1606.0
If we take 3726 away from 4120, we end up with 394.
Bring next digit (1) of the dividend behind the 394 and repeat the process: 3941 / 621

Advancing to step 7:
The number 621 fits into 3941 6 times, leaving a remainder of 215.
Write down 6 as next digit of the result. 
Result so far: 16066.0
The remainder is 215 after subtracting 3726 from 3941.
Append the next digit (5) from the dividend to 215 and continue with: 2155 / 621

Let's proceed to step 8:
If we divide 2155 by 621, we get 3 and a remainder of 292.
The next digit of our result is 3. 
Result so far: 160663.0
The remainder is 292 after subtracting 1863 from 2155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Advancing to step 9:
2920 divided by 621 is 4 with a remainder of 436.
Write down 4 as next digit of the result. 
Result so far: 160663.4
If we subtract 2484 from 2920, we get 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Going ahead to step 10:
4360 divided by 621 is 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 160663.47
If we take 4347 away from 4360, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 11:
If we divide 130 by 621, we get 0 and a remainder of 130.
The next digit of our result is 0. 
Result so far: 160663.47
Subtracting 0 from 130 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Let's proceed to step 12:
621 goes into 1300 2 times with a remainder of 58.
Use 2 as the next digit of our solution. 
Result so far: 160663.4702
Subtracting 1242 from 1300 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 13:
The number 621 fits into 580 0 times, leaving a remainder of 580.
Write down 0 as next digit of the result. 
Result so far: 160663.4702
If we subtract 0 from 580, we get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Let's proceed to step 14:
The number 621 fits into 5800 9 times, leaving a remainder of 211.
The number 9 becomes the next digit in our result. 
Result so far: 160663.470209
Subtract 5589 from 5800 to get 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Moving on to step 15:
621 can be fit into 2110 3 times, resulting in a remainder of 247.
The number 3 becomes the next digit in our result. 
Result so far: 160663.4702093
Deduct 1863 from 2110 and we're left with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Advancing to step 16:
The number 621 fits into 2470 3 times, leaving a remainder of 607.
Put 3 as the next digit of the answer. 
Result so far: 160663.47020933
If we subtract 1863 from 2470, we get 607.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6070, and continue the process.

The final outcome is 160663.47020933, with a leftover of 6.07e-07.